Clenched fist views

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Q: What radiological sign can be seen in the plain radiograph above?
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A: Widening of the scapholunate space signifying scapholunate dissociation otherwise known as the 'Terry Thomas' sign.

A needle was inserted into the right radioscaphoid joint. Iodinated contrast mixed with gadolinium was injected into the right radioscaphoid joint. The contrast extended into the mid carpal joints suggesting a disruption of the scapholunate ligament. The patient was then sent to MRI.